1. Computer-assisted measure of videotape data: a description and case study;Conture,1981
2. Speech therapy patient evaluation techniques with the fiberscope;Casper,1981
3. Developing a direct, objective measure of velopharyngeal inadequacy;Schwartz;Clin Plast Surg,1975
4. Assessment of velopharyngeal function;Pigott,1980
5. Reliability of the nasopharyngeal fiberscope (NPF) for assessing velopharngeal function;Ibuki;Cleft Palate J,1983